Home / 5,393.52-8,090.64-2,106.40

Finding the Fourth Proportional to 5,393.52, 8,090.64 and 2,106.40

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Solution

The fourth proportional to 5,393.52, 8,090.64 and 2,106.40 is: 3,159.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,393.52 : 8,090.64 = 2,106.40 : x
  2. Step 2: Convert to fraction form
    5,393.52/8,090.64 = 2,106.40/x
  3. Step 3: Cross multiply
    5,393.52x = 8,090.64 × 2,106.40
  4. Step 4: Simplify right side
    5,393.52x = 17,042,124.10
  5. Step 5: Solve for x
    x = 17,042,124.10/5,393.52
  6. Step 6: Final answer
    x = 3,159.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.